226 PROFESSOR OWEN ON THE FOSSIL MAMMALS OF AUSTRALIA. 
PLATE 31. 
Fig. 1. Back view of metatarsals iv and v of Procoptodon Pusio, Ow. 
Fig. 2. Front view of the same. 
Fig. 3. Outer side view of the same. 
Fig. 4. Proximal (upper) articular end of the same. 
Fig. 5. Distal (lower) articular end of metatarsal iv of the same fossil. 
Fig. 6. Back view of metatarsals iv and v of Procoptodon Bapha, Ow. 
Fig. 7. Outer side view of metatarsal v of the same. 
Fig. 8. Proximal (upper) articular ends of metatarsals iv and v of the same. 
Fig. 9. Distal (lower) articular end of metatarsal iv of the same. 
Fig. 10. Front view of metatarsal iv of Procoptodon Pusio , foem. 
Fig. 11. Proximal articular end of the same. 
Fig. 12. Back view of distal half of the same. 
All the figures are of the natural size. 
